Removable spring-head.



H. & F M. ATHONS.

REMOVABLE SPRING HEAD. APPLICATION FILED APR. 15. 1916.

1,216,920. Patented Feb. 20, 1917.

ms uonms Pn'ERs co Fnomurnoq wAsmm: km. a. c.

HERBERT ATHONS AND FRED M. ATE-IONS, 015 LOS ANGELE$, CALIFOIRNIA.

REMOVABLE SPRING-HEAD.

Specification of Letters Patent.

Application filed April 15, 1916. Serial N 0. 91,478.

To all whom it may concern:

Be it known that we, HERBERT ATHONs and FRED M. .ATHOIQS, citizens of the United States, residing at Les Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Removable Spring-Heads, of which the following is a specification.

This invention is a removable spring head adapted to be connected to the end of the masterleaf of a leaf'spring.

In the construction of the ordinary leaf spring the head or connecting element of the spring is formed integral with the mats terleaf of the spring and when the'head breaks off the masterleaf, the spring is practically worthless as it cannot be repaired by an ordinary blacksmith.

The object of this invention is to provide a head for a leaf spring, which may be removably connected to the end of the masterleaf of the spring, so that if the masterleaf should break near the head, the part broken off said leaf may be removed from the head and the broken end of the leaf repaired by an ordinary blacksmith and again connected to the head.

A desirable embodiment of the invention is illustrated in the accompanying drawings which form a part of this specification, and in whiche Figure 1 is a perspective view of the end portion of an elliptic spring showing our improved head connected to one member of the spring.

Fig. 2 is a central longitudinal section of the spring taken on line 2-2 of Fig. 1.

Fig. 3 is a cross section of one member of the spring taken on line 33 of Fig. 2.

Fig. A is a perspective view of the removable spring head.

Fig. 5 is a perspective View of the end of the masterleaf of the spring which is attached to the removable head.

In the drawing, 1 indicates the upper member and 2 the lower member of an ellip" tic spring. 3 indicates a removable head for the leaf 1 on which head is formed knuckles 4: which register with a knuckle 5 on the end of leaf 2. A pin 6 extends through the knuckles 4: and 5 whereby the head 3 is pivoted to the leaf 2. The head 3 is provided with a recess 7. The side walls 9 of said recess are dove-tailed. One end of said recess is open, asindicated at 10 in Fig. 1,

while the other end of the recess is closed by end wall 11 which is also dovetailed.

The side walls 9 converge from the open end of the recess 7 to the wall 11. A lip 12 extends from the head 3 beyond the recess 7 with its upper surface flush with the bottom of the recess, said lip being provided with a hole 13. The side edges 14 of the masterleaf 15 of spring member 1 converge and are beveled to fit the converging dovetailed walls 9 of recess 7. The end 16 of the masterleaf is also beveled to fit the dovetailed wall 11. The masterleaf is provided with a hole 17 adapted to register with hole 13 in lip 12 of head 3 when the end of said leaf is in the recess 7 and a rivet 18 is adapted to extend through the holes 13 and 17 and hold the leaf and head together. A

a rib 20 is formed around the lower edge of the lip 12 which gives strength to the lip.

In connecting the end of the masterleaf to the head 3, the end of the leaf is introduced into the recess 7 of said head through the open end 10 of the recess until the hole 17 of the leaf registers with hole 13 in the lip 12 of the head, in which position the side walls 1 1 of the leaf. engage and bind against the side walls 9 of the head and the leaf end 16 engages the wall 11 in the head whereby the end of the leaf is prevented from being removed upwardly out of the head recess 7. The rivet 18 is then introduced through the holes 13 and 17 and the end of the leaf is connected securely to the head 3.

In case the masterleaf breaks near the head, the rivet 18 is driven out of the broken end of the leaf and the lip 12 and the broken end of the leaf is withdrawn from the re cess 7 through the opening 10; the leaf is then repaired at the end by a blacksmith and is again connected to the head as above described.

What we claim is:

1. The combination of a master leaf spring, a spring head provided with a recess open at the top and one end, all the sides of said recess being dovetailed, the sides of said spring being beveled to fit the dovetailed sides of said recess, the end of said spring being adapted to be introduced into said recess through the open end thereof, to fit snugly against the bottom and the sides of said recess, said spring and said head being each provided with a hole adapt ed to register With each other when the spring is in said recess, and a rivet passing through said holes and holding the spring against longitudinal movement in relation to said head.

2. The combination of a master leaf spring, a spring head provided With a recess open at the top and one end, all the sides of said recess being dove-tailed, the

Copies of this patent may be obtained for spring, a spring head provided With a re eess open at the top and one end, said recess eing tapered, having its greatest Width at the open end, all the sides of said recess being clove-tailed, thesides of said spring being tapered and beveled to fit said recess and the dove-tailed sides thereof, the end of said spring being adapted to be introduced into said recess through the open end thereof to fit snugly against the bottom and the sides of said recess, and to form a flush joint With the upper face of said head, and means holding said spring against longitudinal movement in relation to said head.

In testimony whereof We have signed our names to this specification.

HERBERT ATHONS. FRED M. ATI-IONS.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

